Trimming device for sewing-machines



(No Model.) 7

W. A. NEELY & N. G. ROWELL.

TRIMMING DEVICE FOR SEWING MACHINES. No. 379,714. Patented Mar. 20, 1888.

add 126:5666, mama,

UNITED STATES PATENT OFFICE.

WILLIAM A. NEELY AND NORRIS G. ROWELL, OE LYNN, MASSACHUSETTS, ASSIGNORS TO THE WHEELER & WILSON MANUFACTURING COMPANY,

OF BRIDGEPORT, CONNECTICUT.

TR IMMING DEVICE FOR SEWING-MACHINES.

ESPECIPICATION forming part of Letters Patent No. 379,714, dated March 20, 1888.

Application filed Cctober 7, 1887. Serial No. 251,686. (No model.)

To all whom it may concern.-

Be it known that we, VVILLIAM A. NEELY and NoRRIs G. RowELL, both of Lynn, county of Essex, and State of Massachusetts, have invented an Improvement in Sewing-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts. I

This invention has for its object to improve that class of sewing-machines used in trimming material parallel to the line of stitching.

In machines ofthis class using ashuttle m0ving in a circular path it frequently happens that the cutter is adjusted too low, and as a result it is struck by the point of the shuttle and is broken. To avoid the possibility of such accident we have provided the shuttle with a peripheral groove to receive the point of the cutter in case it should, by carelessness, be ad justed too low.

Our invention consists in the combination, with the work-support or throat-plate, cutterbar, and cutter, of a shuttle having a peripheral groove to receive the point of the cutter,

as set forth.

Figure 1 is a front end elevation of a sufficient portion of a sewing-machine to enable our invention to be understood; Fig. 2. an elevation of the shuttle alone; and Fig. 3, a section in the line 00, Fig. 2.

The bed-plate A, the throat-plate T, the race way D, the shuttle or loop-taker G, and sad dle C are and may be all as in United States Patent No. 328,165, except that the shuttle is provided at its periphery with a groove, as a, the said groove commencing at the point of the shuttle and extending back along the periphery of the same to near the end of the beak, as shown by dotted lines. The cutter-bare, held in usual bearings, has attached to it a cutter, (1, provided with a point which always remains below the throat-plate.

In case the cutter is set toolow by accident, as is frequentlythe case, no harm can be done, for the groove (6 at the periphery of the shuttle enables the shuttle to rotate without touching the cutter.

YVe do not desire to limit our invention to a shuttle of the particular shape shown, as it is equally applicable to shuttles of the shape' shown in United States Patent No. 208,838.

We claim The combination, in a sew ingmachine, of a cutter-bar and cutter with a shuttle having the periphery of its point grooved, as at a, to obviate the point of the shuttle striking the said cutter, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

, \VILLIAM A. NEELY.

NORRIS G. ROVELL. Witnesses:

B. FRANK MoULToN, IRA B. KEITH. 

